Actually, there's plenty of prior art... and it's known to the public. There are even patents. Someone at Apple may have seen the patents, modified them for the iPhone, and gotten them published.
http://www.roadtovr.com/samsun...

neoritter writes: The Korean pop star PSY's viral music video "Gangnam Style" has reached the limit of Youtube's view counter. According to Youtube's Google+ account, "We never thought a video would be watched in numbers greater than a 32-bit integer (=2,147,483,647 views), but that was before we met PSY. "Gangnam Style" has been viewed so many times we had to upgrade to a 64-bit integer (9,223,372,036,854,775,808)!"

An anonymous reader writes: Earlier today, Comcast published a blog post to criticize the newly announced coalition opposing its merger with Time Warner Cable and to cheer about the FCC’s decision to restart the “shot clock” on that deal. But someone at Kabletown is probably getting a stern talking-to right now, after an accidental nugget of honesty made its way into that post. Comcast posted to their corporate blog today about the merger review process, reminding everyone why they think it will be so awesome and pointing to the pro-merger comments that have come in to the FCC. But they also left something else in. Near the end, the blog post reads, “Comcast and Time Warner Cable do not currently compete for customers anywhere in America. That means that if the proposed transaction goes through, consumers will not lose a choice of cable companies. Consumers will not lose a choice of broadband providers. And not a single market will see a reduction in competition. Those are simply the facts.” The first version of the blog post, which was also sent out in an e-mail blast, then continues: “We are still working with a vendor to analyze the FCC spreadsheet but in case it shows that there are any consumers in census blocks that may lose a broadband choice, want to make sure these sentences are more nuanced.” After that strange little note, the blog post carries on in praise of competition, saying, “There is a reason we want to provide our customers with better service, faster speeds, and a diverse choice of programming: we don’t want to lose them.”